The Scope Of MOVPE For Advanced IR CMT Detectors

J. B. Mullin; S. J.C. Irvine; J. Giess; J. S. Gough; A. Royle; M. C.L. Ward; G. Crimes

doi:10.1117/12.960625

12 September 1989 The Scope Of MOVPE For Advanced IR CMT Detectors

J. B. Mullin, S. J.C. Irvine, J. Giess, J. S. Gough, A. Royle, M. C.L. Ward, G. Crimes

Proceedings Volume 1106, Future Infrared Detector Materials; (1989) https://doi.org/10.1117/12.960625
Event: SPIE 1989 Technical Symposium on Aerospace Sensing, 1989, Orlando, FL, United States

Abstract

Recent developments in Metalorganic Vapour Phase Epitaxy (MOVPE) of CMT are reviewed and the potential of the technology for producing advanced IR cadmium mercury telluride (CMT) detectors, particularly planar diode arrays, are assessed. The assessment covers the current status of layer production, including compositional uniformity, surface quality and crystalline perfection as well as the electrical properties and doping. In addition, the role of the newer, low temperature precursors as a means of producing advanced detector structures are considered. Recent diode results are reported and it is shown that MOVPE CMT, either on CdTe or GaAs substrates, is capable of producing state-of-the-art performance for diode arrays. The future scope of photolysis for in situ device fabrication is also considered, together with some recent results on photo-patterning of epitaxial CdTe.

Citation Download Citation

J. B. Mullin, S. J.C. Irvine, J. Giess, J. S. Gough, A. Royle, M. C.L. Ward, and G. Crimes "The Scope Of MOVPE For Advanced IR CMT Detectors", Proc. SPIE 1106, Future Infrared Detector Materials, (12 September 1989); https://doi.org/10.1117/12.960625

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